Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 6-Amino-1,3-dimethyluracil
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 6-Amino-1,3-dimethyluracil
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 6-Amino-1,3-Dimethyl-1,2,3,4-Tetrahydropyrimidine-2,4-Dione
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 6-Amino-1,3-dimethyluracil
Price: ￥Inquiry/25kg
Purity: 99.0%
Stocking Period: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

6642-31-5

6642-31-5 structure

6642-31-5 structure

Name: 6-Amino-1,3-dimethyluracil
Chemical Name: 6-Amino-1,3-Dimethyl-1,2,3,4-Tetrahydropyrimidine-2,4-Dione
CAS Number: 6642-31-5
Molecular Formula: C₆H₉N₃O₂
Molecular Weight: 155.155
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyrimidine compound Urinary (urea)pyrimidine
Create Date: 2018-09-12 10:38:34
Modify Date: 2025-08-21 21:08:29

Name	6-Amino-1,3-Dimethyl-1,2,3,4-Tetrahydropyrimidine-2,4-Dione
Synonyms	MFCD00006552 6-Amino-1,3-dimethyluracilï¿½ï¿½6-Amino-1,3-dimethyl-2,4(1h,3h)-dione 6-Amino-1,3-dimethyl-2,4(1H,3H)-pyrimidinedione 6-amino-1,3-dimethylpyrimidine-2,4-dione EINECS 229-662-0 6-amino-1,3-dimethylpyrimidine-2,4(1H,3H)-dione

Density	1.3±0.1 g/cm3
Boiling Point	243.1±43.0 °C at 760 mmHg
Melting Point	295 °C (dec.)(lit.)
Molecular Formula	C₆H₉N₃O₂
Molecular Weight	155.155
Flash Point	100.8±28.2 °C
Exact Mass	155.069473
PSA	70.02000
LogP	-0.27
Vapour Pressure	0.0±0.5 mmHg at 25°C
Index of Refraction	1.551

CHEMICAL IDENTIFICATION

RTECS NUMBER :: YQ8755000

CHEMICAL NAME :: Uracil, 6-amino-1,3-dimethyl-

CAS REGISTRY NUMBER :: 6642-31-5

BEILSTEIN REFERENCE NO. :: 0144390

LAST UPDATED :: 199612

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C6-H9-N3-O2

MOLECULAR WEIGHT :: 155.18

WISWESSER LINE NOTATION :: T6NVNVJ A1 C1 EZ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >1 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: FRMCE8 Farmaco. (Societa Chimica Italiana, Corso Strada Nova, 86, Casella Postale 227, 27100 Pavia, Italy) V.44- 1989- Volume(issue)/page/year: 45,223,1990

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 56 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#04375

Hazard Codes	Xn:Harmful;
Risk Phrases	R22;R36/37/38
Safety Phrases	S22-S26-S36/37/39
RIDADR	NONH for all modes of transport
WGK Germany	1
RTECS	YQ8755000
HS Code	2942000000

Precursor 10
96-31-1 372-09-8 61541-41-1 54660-80-9
89-25-8 16044-79-4 105-56-6 39615-79-7
99747-54-3 108-24-7
DownStream 10
104509-81-1 10146-98-2 5770-44-5 5440-00-6
142168-89-6 93787-99-6 944-73-0 181465-38-3
874-14-6 30189-12-9

HS Code	2933599090
Summary	2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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